Baldwin B95 vs WIX 51649: Oil Filter Compatibility
Compare Baldwin B95 and WIX 51649 oil filters by compatibility, dimensions, thread size, gasket fit, bypass valve, anti-drainback valve status, and match confidence. Use this comparison as a fitment review, not as an automatic substitution guarantee. Both use a 11/2-12 thread.
Quick verdict
Both use a 11/2-12 thread.
- Thread size is the first hard-fit check for any comparison of spin-on filters.
- Gasket OD and gasket ID are the most important seal-related dimensions.
- Height differences can matter for clearance even when thread and gasket fit appear close.
- Bypass and anti-drainback differences may be important, depending on the application.
Baldwin B95 and WIX 51649 specifications
How matching is scored| Specification | Baldwin B95 | WIX 51649 |
|---|---|---|
| Thread size | 11/2-12 | 11/2-12 |
| Gasket OD | 111 mm | 109.7 mm |
| Gasket ID | 100 mm | 97.03 mm |
| Can OD | 118.3 mm | 118.3 mm |
| Height | 252.4 mm | 204.7 mm |
| Internal bypass valve | No | No |
| Bypass PSID | Not applicable | Not applicable |
| Anti-drainback valve | No | No |
What matters in this specific comparison
Thread size matches: both are 11/2-12.
Gasket OD differs by 1.3 mm (Baldwin B95: 111 mm, WIX 51649: 109.7 mm).
Gasket ID differs by 3 mm (Baldwin B95: 100 mm, WIX 51649: 97.03 mm).
Baldwin B95 is 47.7 mm taller (Baldwin B95: 252.4 mm, WIX 51649: 204.7 mm) -- check clearance before substituting.
Can OD is identical at 118.3 mm.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.